drivers/s390/cio/qdio_debug.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *  Copyright IBM Corp. 2008
   4  *
   5  *  Author: Jan Glauber (jang@linux.vnet.ibm.com)
   6  */
   7 #ifndef QDIO_DEBUG_H
   8 #define QDIO_DEBUG_H
   9
  10 #include <asm/debug.h>
  11 #include <asm/qdio.h>
  12 #include "qdio.h"
  13
  14 /* that gives us 15 characters in the text event views */
  15 #define QDIO_DBF_LEN    32
  16
  17 extern debug_info_t *qdio_dbf_setup;
  18 extern debug_info_t *qdio_dbf_error;
  19
  20 #define DBF_ERR         3       /* error conditions     */
  21 #define DBF_WARN        4       /* warning conditions   */
  22 #define DBF_INFO        6       /* informational        */
  23
  24 #undef DBF_EVENT
  25 #undef DBF_ERROR
  26 #undef DBF_DEV_EVENT
  27
  28 #define DBF_EVENT(text...) \
  29         do { \
  30                 char debug_buffer[QDIO_DBF_LEN]; \
  31                 snprintf(debug_buffer, QDIO_DBF_LEN, text); \
  32                 debug_text_event(qdio_dbf_setup, DBF_ERR, debug_buffer); \
  33         } while (0)
  34
  35 static inline void DBF_HEX(void *addr, int len)
  36 {
  37         while (len > 0) {
  38                 debug_event(qdio_dbf_setup, DBF_ERR, addr, len);
  39                 len -= qdio_dbf_setup->buf_size;
  40                 addr += qdio_dbf_setup->buf_size;
  41         }
  42 }
  43
  44 #define DBF_ERROR(text...) \
  45         do { \
  46                 char debug_buffer[QDIO_DBF_LEN]; \
  47                 snprintf(debug_buffer, QDIO_DBF_LEN, text); \
  48                 debug_text_event(qdio_dbf_error, DBF_ERR, debug_buffer); \
  49         } while (0)
  50
  51 static inline void DBF_ERROR_HEX(void *addr, int len)
  52 {
  53         while (len > 0) {
  54                 debug_event(qdio_dbf_error, DBF_ERR, addr, len);
  55                 len -= qdio_dbf_error->buf_size;
  56                 addr += qdio_dbf_error->buf_size;
  57         }
  58 }
  59
  60 #define DBF_DEV_EVENT(level, device, text...) \
  61         do { \
  62                 char debug_buffer[QDIO_DBF_LEN]; \
  63                 if (debug_level_enabled(device->debug_area, level)) { \
  64                         snprintf(debug_buffer, QDIO_DBF_LEN, text); \
  65                         debug_text_event(device->debug_area, level, debug_buffer); \
  66                 } \
  67         } while (0)
  68
  69 static inline void DBF_DEV_HEX(struct qdio_irq *dev, void *addr,
  70                                int len, int level)
  71 {
  72         while (len > 0) {
  73                 debug_event(dev->debug_area, level, addr, len);
  74                 len -= dev->debug_area->buf_size;
  75                 addr += dev->debug_area->buf_size;
  76         }
  77 }
  78
  79 int qdio_allocate_dbf(struct qdio_initialize *init_data,
  80                        struct qdio_irq *irq_ptr);
  81 void qdio_setup_debug_entries(struct qdio_irq *irq_ptr,
  82                               struct ccw_device *cdev);
  83 void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr);
  84 int qdio_debug_init(void);
  85 void qdio_debug_exit(void);
  86
  87 #endif